Packing-ring



(No Model.)

J. J. SULLIVAN.

PAGKING RING.

.No. 389,'772. Patented Sept. 18, 1888.

UNITED STATES PATENT OFFICE JEREMIAH J. SULLIVAN, OF LUDLOlV, KENTUCKY.

i PACK|NG=R|NG.

SPECIFICATION ormig part of Letters Patent No. 389.772, datecl September 18, 1888.

Application filed May 29, 1888. Serial No. 275.456. (No model.)

To alZ whom, it may conccrn:

Be it known that I, J EREMIAH J. SULLIVAN, of Ludlow, in the county of Kenton and State of Kentucky, have invented certain new and useful Improvements in Packing-Rings, of which the following is a specification.

My invention relates to a means for p acking piston rod valve-stems, hydraulic rams, and other similar devices where tight packing is desired. One of the objects of my invention is to provide a cheap as well as a more durable packing forjoints.

Another object of my invention is to provide a durable packing-j oint with a tightening device upon each side of the supporting-ring.

Another object of my invention is to provide a packng device which can be readily-made of soft metal and the parts of which will be properly Secured and readily adjusted automatically without turning nuts and without steampressure, all of which will be fully set forth in the description of the accompanying drawings, making a part of this specification, in which- Figure l is a central longitudinal section of my improvement attached to the cylinder. Fig. 2 is a longitudinal central vertical section of the packing device with the parts separated so as to expose them to view. Fig. 3 is a face View of the packing-rings and spring. Fig. 4 is a face view of one set of the wedge-shapcd packing-rings. Fig. 5 is a modification showing the packing-rings on one side of the supporting-ring.

1 represents, say, a cylinder-head.

2 represents a gland for supporting the packing, made of two sections and provided with annular recesses, 3, in which are placed the packing-rings.

4 5 represent wedge-shaped packing-rings, the inner one, 4, resting upon the base of the recess 3 in the gland, the outer one, 5, resting upon the ring 4. These are split rings with the splits placed opposite to each other, so as to break joints. Upon the packing-ring 5 rests the supporting ring 6, which is preferably made of three pieces, the sections ol' which break joints with the packing -ring 5. Upon the beveled outer edge of said supporting-ring G is placed the inner one of two similar rings, 4 5, in like manner to those on the opposite side of the supporting-rings. The outer wall of the recess 3 of the gland 2 rests upon said ring 4.

7 represents an elastic split ring, preferably made of steel and sprung over the supportingring 6, as shown in Fig. 3.

The rings 4 5 6 are preferably made of soft metal, malleable metal, brass, or other similar material. It will be observed that as the packing-rings 4 and 5 wear away by the move- 'ment of the piston the steel spring-ring 7 presses and draws in the supporting ring 6, drawing in inwardly and together the packing-rings 4 and 5. There being two sets of rings, 4 and 5, on either side, a tight packing is Secured. Thus I am enabled to make' a very cheap, convenient, and du rable packing, which once set will hold in position for a long time without liability of leakage or breakage and requires no care or attention on the part of the operator.

In the modification shown in Fig. 5 I employ packing-rings 4 and 5 only upon one side of the supporting-ring. This requires one edge of the supporting-ring 6 to be made flat instead of tapering, and accomplishes the work in a less efficient manner than when the packingring is employed upon both sides.

By the Construction of the packing-rings herein provided I obtain a great amount of wear, because of the width of the packingrings and the narrowness of the supportingrings, which allows the packing-rings to be drawn close together.

I am aware that wedge-shaped packingrings are not of themselves new, and that in another instance a spring-ring has been arranged around a divided or sectional packing-ring. Such, therefore, I do not broadly claim.

Having described my invention, what I claim s The combination, in a packing, of the sectional metal ring 6, the inner wedge-shaped split packing ring 5, resting therein and having both its inner and outer surfaces inclned and its outer inclined surface bear-ing In testimony whereof I have hereunto set upon the edge of the sectional ring, the outer ny hand. wedge-shaped split ring resting in the enter paekng-ring, and the steel ring 7, enereling JEREMIAH J. SULLIVAN. 5 the sectional metal ring 6, to force its sections against the inelined outer surfaces of the XVitnesses: inner wedge shaped packing ring, substan- ROBERT ZAHNER, tially as described. J. WATSON Sms. 

